/* GLOBAL RESET & VARIABLES */
:root {
  --bg-primary: #050505;
  --bg-secondary: #0f0f0f;
  --text-primary: #e0e0e0;
  --text-secondary: #808080;
  --accent-color: #ff0040; /* Sharp, vivid red */
  --accent-hover: #cc0033;
  --border-color: #222;
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Roboto Mono', monospace; /* Tech/Data feel */
  --max-width: 1200px;
  --glass-bg: rgba(15, 15, 15, 0.8);
  --glass-border: rgba(255, 255, 255, 0.05);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

a:hover {
  color: var(--accent-color);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  background: linear-gradient(to right, #fff, #888);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 2rem;
  margin-top: 3rem;
  border-left: 4px solid var(--accent-color);
  padding-left: 1rem;
  display: inline-block;
}

h3 { font-size: 1.5rem; margin-top: 2rem; color: var(--text-secondary); }

p { margin-bottom: 1.5rem; max-width: 70ch; }

/* UTILITY */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* HEADER */
header {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  text-transform: uppercase;
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  color: var(--text-secondary);
}

.nav-links a:hover {
  color: #fff;
}

/* HERO */
.hero {
  padding: 10rem 0;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 0, 64, 0.05) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  color: var(--text-secondary);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2rem;
  background-color: transparent;
  color: #fff;
  font-weight: 700;
  text-transform: uppercase;
  border: 1px solid var(--border-color);
  letter-spacing: 1px;
  font-size: 0.8rem;
  transition: all 0.3s ease;
}

.cta-button:hover {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px rgba(255, 0, 64, 0.5);
}

/* CONTENT SECTIONS */
section { padding: 6rem 0; }

article {
  max-width: 800px;
  margin: 0 auto;
  /* background-color: var(--bg-secondary); Removed explicit background for cleaner look */
  padding: 0; /* Removed padding */
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0;
  margin-top: 4rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-family: var(--font-heading);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

footer .legal-links {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 2rem;
}

footer .legal-links a { color: var(--text-secondary); }
footer .legal-links a:hover { color: #fff; }

/* PHASE 4: GLOBAL CSS (AdSense CLS Armor) */
.ad-container-leaderboard {
  min-height: 90px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 40px 0;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  position: relative;
}

.ad-container-leaderboard::after {
  content: 'ADVERTISEMENT';
  position: absolute;
  top: -10px;
  right: 10px;
  font-size: 0.6rem;
  background: var(--bg-primary);
  padding: 0 5px;
  color: var(--text-secondary);
  font-family: var(--font-heading);
}

@media (max-width: 768px) {
  .ad-container-leaderboard {
    min-height: 250px;
  }

  h1 { font-size: 2.5rem; }

  .nav-links {
    gap: 1rem;
    font-size: 0.7rem;
  }
}